Facial feature points are distinctive points typically located around the eyes, nose, chin, and mouth that carry the most relevant information for both discriminative and generative purposes [1]}.
With increasingly larger and broadly available facial imagery datasets, researchers have taught computers to perform interesting tasks, such as using these feature points to determine the level of drowsiness/sleepiness of a driver [2]}, recognize emotions [3]}, quantify fatigue [4]}, estimate heart rate [5]}, and lip-reading [6]}.
